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weqwewe [10]
3 years ago
5

Need help ASAP!!!! Which two ratios form a proportion?

Mathematics
2 answers:
Alika [10]3 years ago
5 0

Answer:

C

Step-by-step explanation:

Pls make me brainliest

Galina-37 [17]3 years ago
4 0

Answer:

The answer is C 1/2 and 7/14

Two equivalent ratios for a proportion

To determine whether the two ratios form a proportion, you can compare them using a common denominator

1/2 = 7/14

1x7 = 7

2x7 = 14

7/14 = 7/14

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Lena [83]

Answer:

Since the calculated z=40  falls in the critical region this indicates that the true obesity rate for children in Marion County is different from the national average at the 0.05 significance level. We reject the null hypothesis that population proportion is 0.17.

Step-by-step explanation:

The national average is 17% .The z proportional hypothesis test is used.

1) Let the null and alternate hypothesis be

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The critical region is z > 1.96  and Z <- 1.96 because  it is two tailed test.

Computing

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Z= 0.22-0.17/ √0.17*(1- 0.17)/90147

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Since the calculated z=40  falls in the critical region this indicates that the true obesity rate for children in Marion County is different from the national average at the 0.05 significance level. We reject the null hypothesis that population proportion is 0.17.

3 0
3 years ago
Answer pleaseee!!! There is a screen shot attached!
anastassius [24]

Answer:

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Step-by-step explanation:

5 0
2 years ago
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Answer:

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Step-by-step explanation:

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Which method of separation can be used for a homogeneous mixture ?
worty [1.4K]
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